This looks like a very good deal! On their site, it says that this is a price drop, so perhaps Pentax have decided to ease up on their MAP restrictions? They can't expect to sell many lenses (if any) at full price.

It is overpriced at $997 but you get a 1 year warranty and hopefully more reliable SDM if the lens was made in 2012 or later. The used KEH models may well have ticking-time-bomb SDM just waiting to fail...

When you can get the Tamron 70-200 F2.8 for $670, and it's fast screw drive reliable focusing, and it's sharpness as good as the Nikon VRII and Canon IS Mark II the 50-135 for anything more than $700 seems VERY expensive.

Having said that, if they drop the price on black Friday to <$800 like they did last year AND they don't announce a FF, I may buy one and a 16-50 again. But only if they drop the prices like they did last year...